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- Question
Among four students sitting in a row, average age of last three students is 20 years and the average age of first three students is 21 years. If the age of first student is 26 years, then what is the age (in years) of the last student?
Options- A. 23
- B. 37
- C. 24
- D. 29
- Correct Answer
- 23
- 1. The difference between simple interest and compound on Rs. 1200 for one year at 10% per annum reckoned half-yearly is
Options- A. Rs.2
- B. Rs.3
- C. Rs.4
- D. Rs.5 Discuss
- 2. What is the compound interest (in Rs) for 1 year on a sum of Rs 20000 at the rate of 40% per annum compounding half yearly?
Options- A. 8000
- B. 8650
- C. 8750
- D. 8800 Discuss
- 3. If 1st January 2013 was Wednesday, then what day of the week was it on 2nd January 2014?
Options- A. Wednesday
- B. Thursday
- C. Tuesday
- D. Friday Discuss
- 4. The compound interest on Rs. 4000 for 4 years at 10% per annum will be
Options- A. Rs. 1856.40
- B. Rs. 1600
- C. Rs. 1856
- D. Rs. 1756.60 Discuss
- 5. If O is the orthocentre of a triangle ABC and ?BOC = 100°, the measure of ?BAC is
Options- A. 100°
- B. 180°
- C. 80°
- D. 200° Discuss
- 6. Simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs. 16000 for 2 years at 10% per annum. The sum placed on simple interest is:
Options- A. Rs 14000
- B. Rs 3500
- C. Rs 7000
- D. Rs 5600 Discuss
- 7. The ratio of milk and water in three samples is 1 : 3, 3 : 5 and 11 : 5. A mixture containing equal quantities of all three samples is made. What will be the ratio of milk and water in the new mixture?
Options- A. 7 : 9
- B. 5 : 7
- C. 15 : 13
- D. 9 : 11 Discuss
- 8. ABCD is a quadrilateral inscribed in a circle (radius = ). The bisectors of the angles DAB and BCD intersect the circle at X and Y, respectively. What is the length of the straight line XY?
Options- A. ? (rxr)
- B. 2r
- C. (r + 2)
- D. ? (rxr)/2 Discuss
- 9. The average weight of 10 parcels is 1.7 kg. Addition of another new parcel reduces the average weight by 60 gram. What is the weight , in kg, of the new parcel?
Options- A. 1.04
- B. 1.08
- C. 1.4
- D. 1.8 Discuss
- 10. The bankers discount and true discount on a sum of money due 8 months hence are Rs.120 & Rs.110 resp. Find the sum.
Options- A. 1457
- B. 1320
- C. 1140
- D. 1260 Discuss
More questions
Correct Answer: Rs.3
Explanation:
S.I. = Rs.(1200*10*1)/100=rs.120
C.I. =rs[1200*(1+5/100)2-1200]=rs.123
Difference = Rs.(123-120) =Rs.3
Correct Answer: 8800
Correct Answer: Friday
Correct Answer: Rs. 1856.40
Correct Answer: 80°
Correct Answer: Rs 7000
Correct Answer: 7 : 9
Correct Answer: 2r
Correct Answer: 1.04
Correct Answer: 1320
Explanation:
Sum = (B.D * T.D) / (B.D) -(T.D)
= (120 * 110) / (120 -110)
= 1320
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